| Effect of maize‖potato intercropping on topsoil moisture and yield benefits |
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| DOI：10.7606/j.issn.1000-7601.2017.06.11 |
| Key Words: maize and potato intercropping drought resistance cultivation soil moisture yield and benefit |
| Author Name | Affiliation | | AN Tong-xin | Faculty of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, Yunnan 650201, China | | CHEN Meng-li | Agricultural Technology Promotion Station of Tonghai County, Yuxi, Yunnan 652700, China | | GAO Lian-zhang | Bureau of Agricultural Technology Promotion Center of Xuanwei, Qujing, Yunnan 650201, China | | LU Jing | Faculty of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, Yunnan 650201, China | | ZHOU Feng | Faculty of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, Yunnan 650201, China | | WU Bo-zhi | Faculty of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, Yunnan 650201, China | | ZHANG Lian-gen | Faculty of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, Yunnan 650201, China |
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| Abstract: |
| The field experiment was conducted to investigate the effect of maize‖potato intercropping on drought resistance in the Agricultural Technology Demonstration Base of Xuanwei city in 2014. The treatments include: T1, maize + ditching + polythene mulch intercropping with potato; T2, maize + pitting + polythene mulch intercropping with potato; T3, maize + polythene mulch intercropping with potato; T4, maize monoculture with polythene; T5, potato monoculture. The results showed that mean soil moisture of treatment T1 and T2 in maize field were higher than that of treatment T4, as increased by 28.32% in 0～7.6 cm soil layer and 28.12% in 0～20 cm soil layer respectively. Soil moisture of treatment T1 and T2 in potato field were increased by 23.52% in 0～7.6 cm soil layer and 12.78% in 0～20 cm soil layer compared with treatment T5. Treatment T1 and T2 significantly increased the yield of maize and land equivalent ratio(LER) than treatment T3, the LER of T2(LER=1.20) was 10.52% higher than T3. |
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